**Length - third and fourth class **

Content for third class

*The child should be enabled to*

- Estimate, compare, measure and record lengths of a wide variety of objects using appropriate metric units (m, cm) such as
*everyday objects, furniture, heights of children etc?*

Estimate length and height without and with unit of measurement present measure to check estimates? - Rename units of length in m and cm - 125 cm = 1 m 25 cm
- Solve and complete practical tasks and problems involving the addition and subtraction of units of length (m, cm).

*Confine to totals that can be readily checked by measuring.*

Content for fourth class

*The child should be enabled to*

- Estimate, compare, measure and record lengths of a wide variety of objects, using appropriate metric units, and selecting suitable instruments of measurement such as
*lengths and heights of doors, corridors, school yard, paths, drives, playing-fields using instruments like rulers, tape measures and trundle wheels?* - Rename units of length using decimal or fraction form e.g.

*25 cm = 0.25 m = quarter m*

2 km 150 m = 2150 m = 2.15 km - Understand, estimate and measure the perimeter of regular 2-D shapes
- Solve and complete practical tasks and problems involving the addition, subtraction, multiplication and simple division of units of length (m, cm, and km).